From: Daniel Mack <zonque@gmail.com>
To: "Aurélien Leblond" <blablack@gmail.com>
Cc: tiwai@suse.de, alsa-devel@alsa-project.org, clemens@ladisch.de,
gdiffey@gmail.com, linuxaudio@showlabor.de
Subject: Re: [PATCH 2/5] ALSA: snd-usb: implement new endpoint streaming model
Date: Wed, 21 Dec 2011 18:18:30 +0100 [thread overview]
Message-ID: <4EF214E6.8050405@gmail.com> (raw)
In-Reply-To: <CAE-xCyNV0u1PBiHt_tXQT5dqgGE=LhLYyTEfuoAKxO1TvqOXyQ@mail.gmail.com>
On 12/21/2011 06:11 PM, Aurélien Leblond wrote:
>>> In dmesg, I get the following:
>>> [ 92.185624] BUG: unable to handle kernel NULL pointer dereference
>>> at 0000000000000008
>>> [ 92.185637] IP: [<ffffffffa05c9768>]
>>> snd_usb_endpoint_activate+0x18/0x90 [snd_usb_audio]
>>
>> Can you do a quick fix and add the following two lines right at the
>> beginning of snd_usb_endpoint_activate() in sound/usb/endpoint.c:
>>
>> if (!ep)
>> return 0;
>>
>> ? I'll fix this in a nicer way, but that should work.
>
> Code changed and compiled.
> Unfortunately my whole machine freezes as soon as I start Jack.
*sigh*
Which hardware is connected? Did you try that with both? Did you try
with anything else than jack? I'd need more information about your setup
to get an idea.
Daniel
next prev parent reply other threads:[~2011-12-21 17:18 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-20 23:34 [PATCH 0/5] snd-usb endpoint rework, take 5 Daniel Mack
2011-12-20 23:34 ` [PATCH 1/5] ALSA: snd-usb: add snd_usb_audio-wide mutex Daniel Mack
2011-12-20 23:34 ` [PATCH 2/5] ALSA: snd-usb: implement new endpoint streaming model Daniel Mack
2011-12-21 16:16 ` Aurélien Leblond
2011-12-21 16:34 ` Daniel Mack
2011-12-21 17:11 ` Aurélien Leblond
2011-12-21 17:18 ` Daniel Mack [this message]
2011-12-22 17:55 ` Aurélien Leblond
2011-12-22 19:04 ` Daniel Mack
2011-12-20 23:34 ` [PATCH 3/5] ALSA: snd-usb: switch over to new endpoint streaming logic Daniel Mack
2011-12-20 23:34 ` [PATCH 4/5] ALSA: snd-usb: remove old " Daniel Mack
2011-12-20 23:34 ` [PATCH 5/5] ALSA: snd-usb: add support for implicit feedback Daniel Mack
-- strict thread matches above, loose matches on Subject: below --
2011-12-20 9:48 [PATCH 0/5] snd-usb endpoint rework, take 4 Daniel Mack
2011-12-20 9:48 ` [PATCH 2/5] ALSA: snd-usb: implement new endpoint streaming model Daniel Mack
2011-12-20 15:08 ` Takashi Iwai
2011-12-20 15:32 ` Clemens Ladisch
2011-12-20 20:16 ` Daniel Mack
2011-12-20 15:42 ` Takashi Iwai
2011-12-20 20:08 ` Daniel Mack
2011-12-18 23:02 [PATCH 0/5] snd-usb endpoint logic rework, version 3 Daniel Mack
2011-12-18 23:02 ` [PATCH 2/5] ALSA: snd-usb: implement new endpoint streaming model Daniel Mack
2011-11-18 20:05 [PATCH 0/5] RFC v2 for snd-usb endpoint logic rework Daniel Mack
2011-11-18 20:05 ` [PATCH 2/5] ALSA: snd-usb: implement new endpoint streaming model Daniel Mack
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